Peyto was the son of William de Peyto and Joan Thornbury. He was the
Sheriff of Warwickshire and
Leicestershire between Michaelmas 1428 and 10 February 1430, and again between 8 November 1436 and 7 November 1437. Peyto was the garrison commander of the town and castle of
Creil in France, that was
besieged on 8 May 1441, by a French army led by King
Charles VII of France. After two weeks the French artillery breached the walls. Peyto, led the garrison and sallied out on 24 May but were beaten. They surrendered the next day and where allowed safe conduct into
Normandy. Peyto was the captain of Dieppe and was captured during the
siege of Dieppe in 1442–43. He was ransomed for 3,000
écus and had to mortgage his estates upon his return to England in 1445. ==Marriage and issue==